Hoisting-bucket.



G. FOCHT.

HOISTING BUCKET.

APPLICATION FILED APR. 2, 1908.

902,223. Patented Oct. 27, 1 908.

UNITED STATES PATENT @FFICE.

GEORGE FOOHT, OF I-IOBOKEN, NEW JERSEY.

HOIS TING-B UCKE '1.

To all whom it may concern:

Be it known that I, GEORGE FooH'r, a citizen of the United States, residing at Hoboken, in the county of Hudson and State of New Jersey, have invented a new and useful Hoisting-Bucket, of which the following is a specification.

This invention relates to hoisting buckets with especial relation to buckets of the dump type in which the dumping is eifected by the reversal of the bucket.

One object of the invention is to provide an improved form of such bucket in which the dumping will be effected quietly and with a minimum of shock to the materials dumped.

Another object of the invention is to provide an improved form of bucket of this type which will automatically dump upon being lowered to the ground.

The invention consists in a hoisting bucket substantially segmental in cross section, one straight edge of the segmental cross section forming the top line of the bucket, and a novel bail support therefor.

In the accompanying drawings, like characters of reference indicate like parts throughout the several views.

Figure 1 is an end view of the bucket in loaded position, the same being shown supported in its cradle. Fig. 2 is a front view of Fig. 1, partly in section. Fig. 3 is a View similar to Fig. 1, showing the bucket in dumped position, a portion of one of the protecting ears being broken away to show the cam slot.

In the embodiment of the invention here shown, the bucket is provided with a pair of end walls 10, a straight back wall 11, and a continuously curved front and bottom wall 12. At the top, when in loaded position, there is provided, preferably, a reinforcing band 13. About in the center of each end wall there is formed a cam slot 14. This slot is so arranged that, when the bucket is loaded, the center of gravity of the bucket and load will be below, and preferably slightly to the rear, of the highest point of the cam slot. The slot is further arranged so that when in the position shown in Fig. 2, the center of gravity of the empty bucket will lie beneath the highest point of the cam slot. For the purpose of supporting the bucket there is provided a bail 15 having a suitable eye 16 for the reception of a hook,

Patented Oct. 27, 1908.

Serial No. 424,791.

! rope, or the like, by which the bucket may be hoisted. This bail is substantially of an inverted U shape, and at the lower end of the ledge thereof there are provided pivot lugs 17 arranged to lie within the cam slots 14. Mounted upon the end walls of the bucket are stops 18 which prevent the bucket from tipping backward, and stops 19 which limit the motion of the bucket to the position shown in Fig. 3, when the same is dumped. The stops 18 are provided with ends arranged to overlap the bail 15 when in loaded position, and thus prevent its springing out, or otherwise being distorted. As a further guard against the pins or pivot lugs springing out of the slots 14, there is provided a cover plate 19 open on one side to permit the free movement of the bucket relatively to the bail, and attached on the other side to the end wall adjacent the cam slot.

When it is desired to load the bucket, the same is placed in a cradle, here designated by the numeral 20, this cradle serving to keep the bucket upright. As a means of securing the bucket to the cradle, there is provided on the bucket a pair of ears 21, and on the cradle 20 is mounted a shaft 22 carrying a pair of hooks 23 arranged to engage the ears 21, as shown in Figs. 1 and 2. Upon the shaft 22 there is also mounted a foot lever 24 for the purpose of actuating the shaft and for releasing the bucket from the cradle.

In the operation of the device, when the loaded bucket is detached from the cradle and lowered to the desired point, it will be plain that, upon coming into contact with the ground, the peculiar contour of the bucket will cause the same to roll over and the contents will thus be poured upon the ground rather than violently dumped. When the emptied bucket is returned to the starting point, or other desired point, it is reverted by hand. It is to be noted that, as the bucket rolls over, the pivot lugs 17 move from one end of the cam slot toward the other end, the completion of the movement being effected by the movement upward of the bail at the beginning of the hoist. It will be obvious that when the bucket is reverted for loading, the pivot lugs will again assume the position shown in Fig. 1. It is to be observed that if desired to move the cradle from one point of loading to another,

it is simply necessary to attach the cradle to the bucket when the two may be lifted by the hoisting means as a unit.

I claim 1. A hoisting bucket substantially segmental. in cross section, in combination with a bail provided with pivot lugs, and cam guides for the pivots held upon the sides of said bucket.

2. A hoisting bucket having a bottom formed to cause said bucket to be in unstable equilibrium when placed on level ground, in combination with a bail having pivots inovable on said bucket, and cam guides for the pivots.

A hoisting bucket having a bottom formed to cause said bucket to be in unstable equilibrium when placed on level ground, in combination with a bail provided with pivot lugs, means for moving the pivot point as the bucket is dumped and cam guides for the pivots, held upon the sides of said buckets.

l. A hoisting bucket having a pair of end walls provided with cam slots oppositely disposed and each arranged to have one end above the center of gravity when in loaded position and the other end above the center of gravity when in unloaded position, a

straight back wall, and a continuously curved front and bottom wall the lowermost point of which lies to the rear of the center of gravity when the bucket is in loaded position, in combination with a bail provided with pivot lugs engaging said cam slots, and means to limit the rotation of said bail.

A hoisting bucket having a pair of end walls provided with cam slots oppositely disposed, and each arranged to have one end above the center of gravity when in loaded position, and the other end above the center of gravity when in unloaded position, a straight back wall, a continuously curved front and bottom wall, the lowermost point of which lies to the rear of the center of gravity when the bucket is in loaded position, in combination with a bail provided with pivot lugs engaging said cam slot, means to limit the rotation of said bail, and a cradle to hold said bucket upright.

In testimony that I claim the foregoing as my owin I have hereto atlixed my signature in the presence of two witnesses.

GEORGE FOCHT.

Witnesses OTTO ZAREMBAT, J AMES P. MOORE. 

